William W. answered 02/17/21
Math and science made easy - learn from a retired engineer
The left portion of the graph looks like a parabola with a zero at -3 having multiplicity 2 which means it will result in a factor of (x + 3)2.
The middle portion of the graph looks like x3.
The right side of the graph has a zero of 2 so a corresponding factor of (x - 2).
Putting these together we have (x + 3)2(x3)(x - 2)
There will be a negative stretch factor but we can let the algebra determine the value. Since the point (-2, -8) is on the graph, we can say:
-8 = a((-2) + 3)2((-2)3)((-2) - 2)
-8 = a(1)2 (-8)(-4)
-8 = 32a
a = -8/32 = -1/4
So f(x) = -1/4(x + 3)2(x3)(x - 2)
Of course, if desired, this can be multiplied out to provide a polynomial in standard form.